The meeting will be, of course, like all formal rendezvous for the delivery of prisoners.
The captain of the band will come forward accompanied by his charge, and perhaps by a sowar.

We three will stand together, side by side, and await their coming.

Now the plot is this.

They have determined if possible to murder both Shere Ali and Isaacs then and there together.
They have not counted on us, but they probably expect that our friend will arrive guarded by a troop of horse.

The maharajah's men will try and sneak up close to where we stand, and at a signal, which the leader, in conversation with Isaacs, will give by laying his hand on his shoulder, the men will rush in and cut Shere Ali to pieces, and Isaacs too if the captain cannot do it alone.